Safety device and crash preventing drone comprising same

Abstract

A drone according to an embodiment may comprise: a support table; a main unit spaced from the support table and formed above the support table; a connecting portion for connecting the main unit and the support table; and a propulsion unit provided on the outer side of the support table so as to generate thrust. The main unit may have a through-hole formed therein, a parachute may be provided inside the through-hole, and, during a fall, the parachute may be discharged out of the through-hole by deformation of the connecting portion.

The invention claimed is: 
     
       1. A drone comprising:
 a support; 
 a main body provided above the support by being separated from the support; 
 a connector configured to connect the main body and the support; and 
 a thruster provided on an outer side of the support and configured to generate a thrust force, 
 wherein the main body comprises a through-hole therein, 
 wherein the through-hole contains a parachute, 
 wherein, when the drone falls, the parachute is discharged out of the through-hole by the connector being deformed. 
 
     
     
       2. The drone of  claim 1 , wherein the connector is an elastic member,
 wherein the elastic member is configured to be expanded by a resilient force in response to the main body being in a zero-gravity state. 
 
     
     
       3. The drone of  claim 2 , further comprising:
 a needle valve provided on the support, and configured to be engaged with the through-hole when the elastic member is contracted. 
 
     
     
       4. The drone of  claim 2 , further comprising:
 a restrictor configured to enclose the elastic member, 
 wherein the restrictor is configured to offset the resilient force of the elastic member. 
 
     
     
       5. The drone of  claim 4 , wherein the restrictor is a solenoid valve,
 wherein an electromagnetic force generated in the solenoid valve is configured to offset the resilient force of the elastic member. 
 
     
     
       6. The drone of  claim 3 , further comprising:
 a sealing member provided in a lower end portion of the through-hole to be engaged with the needle valve. 
 
     
     
       7. The drone of  claim 1 , further comprising:
 a holder provided inside the through-hole, 
 wherein the holder is disposed under the parachute to support the parachute such that the parachute does not fall downwards. 
 
     
     
       8. The drone of  claim 7 , wherein the holder is provided in a mesh form such that, when the drone falls, an air flow from a bottom to a top of the through-hole is generated. 
     
     
       9. The drone of  claim 1 , further comprising:
 a lid provided in an upper end portion of the through-hole, 
 wherein the lid is opened by an air flow through the through-hole. 
 
     
     
       10. The drone of  claim 1 , further comprising:
 a landing member provided under the support. 
 
     
     
       11. A flying vehicle comprising:
 a support; 
 a main body provided above the support by being separated from the support; 
 a thruster provided on an outer side of the support and configured to generate a thrust force; 
 a through-hole formed in the main body; 
 a parachute provided inside the through-hole; and 
 a needle valve provided in a lower end portion of the through-hole and configured to be engaged with the through-hole, 
 wherein, when the flying vehicle falls, the needle valve is opened and an air flow from bottom to top is generated through the through-hole, and the parachute is configured to be discharged out of the through-hole. 
 
     
     
       12. The flying vehicle of  claim 11 , further comprising:
 a sensor configured to sense a falling speed of the flying vehicle, and transfer an open signal to the needle valve. 
 
     
     
       13. The flying vehicle of  claim 11 , further comprising:
 an elastic member configured to connect the main body and the support, 
 wherein, when the main body is in a zero-gravity state, the elastic member is configured to be expanded by a resilient force, 
 wherein, when the elastic member is expanded, the needle valve is opened. 
 
     
     
       14. The flying vehicle of  claim 11 , further comprising:
 a holder provided inside the through-hole, 
 wherein the holder is disposed under the parachute, and configured to support the parachute such that the parachute does not fall downwards, and 
 the holder is provided in a mesh form such that an air flow from a bottom to a top of the through-hole is generated when the flying vehicle falls. 
 
     
     
       15. The flying vehicle of  claim 11 , further comprising:
 a lid provided in an upper end portion of the through-hole, wherein the lid is configured to be opened by an air flow through the through-hole. 
 
     
     
       16. A safety device to be attached to or detached from a flying vehicle, the safety device comprising:
 a support; 
 a main body provided above the support by being separated from the support; 
 a through-hole formed in the main body; 
 a parachute provided inside the through-hole; 
 a needle valve provided in a lower end portion of the through-hole and configured to be engaged with the through-hole; and 
 a connector provided under the support and configured to attach or detach the safety device to and from the flying vehicle, 
 wherein, when the safety device falls, the needle valve is configured to be opened, an air flow from bottom to top is generated through the through-hole, and the parachute is configured to be discharged out of the through-hole. 
 
     
     
       17. The safety device of  claim 16 , further comprising:
 a sensor configured to sense a falling speed of the safety device, and transfer an open signal to the needle valve. 
 
     
     
       18. The safety device of  claim 16 , further comprising:
 an elastic member configured to connect the main body and the support, 
 wherein, when the main body is in a zero-gravity state due to the safety device falling, the elastic member is configured to be expanded by a resilient force, and 
 the needle valve is configured to be opened when the elastic member is expanded. 
 
     
     
       19. The safety device of  claim 18 , further comprising:
 a restrictor configured to enclose the elastic member, 
 wherein the restrictor is a solenoid valve, and 
 an electromagnetic force generated in the solenoid valve is configured to offset the resilient force of the elastic member. 
 
     
     
       20. The safety device of  claim 16 , further comprising:
 a holder provided inside the through-hole; and 
 a lid provided in an upper end portion of the through-hole, 
 wherein the holder is disposed under the parachute, and configured to support the parachute such that the parachute does not fall downwards, and the holder is provided in a mesh form such that an air flow from a bottom to a top of the through-hole is generated when the safety device falls, 
 wherein the lid is configured to be opened by an air flow through the through-hole.